Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Qual é o valor de Under-17 se Under-15 for Maria Elena Ubina?
 ###Tabelas: CREATE TABLE universities_and_colleges_ranked_by_endowment (universities_and_colleges_ranked_by_endowment_id AUTO_INCREMENT PRIMARY KEY, State Rank INT, National Rank INT, Institution VARCHAR, Location VARCHAR, Public or Private VARCHAR, Endowment Funds VARCHAR, Percentage Change YOY VARCHAR) CREATE TABLE girls (girls_id AUTO_INCREMENT PRIMARY KEY, Year INT, Under-11 VARCHAR, Under-13 VARCHAR, Under-15 VARCHAR, Under-17 VARCHAR, Under-19 VARCHAR) CREATE TABLE churches_belonging_to_the_assembly_of_canonical_bishops_of_north__&__central_america (churches_belonging_to_the_assembly_of_canonical_bishops_of_north__&__central_america_id AUTO_INCREMENT PRIMARY KEY, Adherents INT, Regular Attendees INT, % of adherents VARCHAR, Monasteries INT, Parishes INT, Average Parish Size INT) CREATE TABLE yes_fm_stations (yes_fm_stations_id AUTO_INCREMENT PRIMARY KEY, Branding VARCHAR, Callsign VARCHAR, Frequency VARCHAR, Power (kW) VARCHAR, Location VARCHAR) CREATE TABLE jersey_progression (jersey_progression_id AUTO_INCREMENT PRIMARY KEY, Stage INT, Winner VARCHAR, General classification VARCHAR, Points classification VARCHAR, Mountains classification VARCHAR, Sprints classification VARCHAR, Team classification VARCHAR)  
SELECT Under-17 FROM girls WHERE Under-15 = Maria Elena Ubina